Vehicle-wheel tire.



H. MULHOLLAND.

-VEHIGL'B WHEELTIRB. APPLICATION FILED DEU. 20. 1919. i

990,664. 1 1 Patented A111125; 1911.

"UNITED sri-irasg PATENT HUGH MULHoLLaNn,l or Nwdxomt; N.

specification ef Letters ratent.

,UFFICI-1f y Patenten apr. 25,11911. y

Application led December 20, 1910. Serial No. 598,277.

To ail-whom ai my (50mm.-

Be it known that I, YlVIULInqLLaNn,

a citizen. of the United States.; residing atA `the city of New York,"county of New York,

State of New York; have invented new and useful Improvements inVehicle-I Yheel Tires, of which the following is a specifica tion. y Y

This invention relates to a vehicle v vheel tire and especially to'thattype in which a plurality of v'solid rubber blocks are posi-,.

tioned in alternate rowsl on the circumference of the felly or tire ofthe wheel.

The invention isessentialh1 adapted for automobiles and heavy autotrucks, the rubber blocks constitntinga series of cushioning resilientvtreads designed to be non-skidding and give positive contact to theground.l

` The invention resides in the peculiar method of interlocking therubber blocks in afseries of channels formed in plates Which arefastened to a metallic band arranged on the peripheryV of the wheelfelly. The base portion of each of the solid blocks is vulcanized intothe channels of a plate thus interlocking the `block to the plate andpreventing lateral aswell as tangential displacement of the block.

The novel features of this invention are more fully described in the'following specification and claims and illustrated inthe accomnanying.drawing in ,which Figure 1 represents a vertical section of a vehiclewheel embodying this invention.

Fig. 2 is a plan view of the same. Fig. 3 is Y a transverse sectiontaken along line w Fig.

.with a number of channels e formed in the top of the plate. On each ofthe said plates is arranged a key f molded of hard rubber and extendingtransversely on a' plate.. the base thereof beingvulcan'ized into thesaid channels thus uniting` the key to the pla-te. The upper portion ofthe `key is preferably provided with notches 0r grooves g as illusries arubber lblock 7rithe base portion of which is vulcanized into thechannels in the plate and intothe grooves formed on the key. Each blockis thus held and firmly united to a plate before the plates are disposedon the Wheel.

trated in Fig. 6. Each ofthe plates-flv .ca1,r

The base portion o f` each plate extends beyond the sides and ends ofthe rubber block and `on this portion of the plates is disposed a platez' which has .openings 7' to fit around the blocks. There may be anynumber of these plates but it has been found that three are sufiicienton a Wheel constructed like the above. These plates are fastened to theband by means of l' a series of counter sunk 4bolts i-and to the fellyof the Wheel by a series of bolts m. The formation of the plates areshown in f Fig, 4 and the ends of the plates have ears or projections nto overlap the preceding` plate and thus fasten the plates together andat the same time, to the band bythe said bolts 7s. n

The channels .in each of the plates are shown continuous as seen in Fig.5. and when a rubber block is vulcanized in the channels it forms aninexpensive and secure Way of unitingr a block to a plate. i It Will beseen that when a block becomes worn the plate andvits block can bereadily removed from the Wheel and otherblocks substituted. The upperplates 2'. when in place and ,bolted to the band form a smoothstructure. the

openings in the plate being of the same shape as the exterior of therubber blocks preventl lodgmentof dirt Where the rubber is joined to theplate. It "should be said the Vplates 27 with the boltsl: and m co-actwith holes inthe plates d and thus tirmlv bolt the said plates to theband and felly of the wheel.

I'claim.v

l. In a vehicle tire. the combination with ay metallic band. of aplurality of series of plates each plate having continuous channels; aplurality of rubber tread blocks positioned one on each plate, saidchannels in said plates being-adapted to interlock with the base'portion of each tread block. and

.means fox-securing the plates and blocks in operative position on themetallic band.

' 2. In a vehicle tire. `the combination with n ametalli'c band. ofaplurality of series of plates each plate 4h avimgr continuous channels,a' plurality of. rubber tread blocks one being positonedon each` plate,a key to engage the channels, the base portion of each my hand in thepresence of two subscribing tread block being adapted 't0 engage the keywlt-nesses. and vulcanized to interlock in the channels o f one of theplates, and means for securing n 5 the plates and blocks in operativeposition Witnesses: lon the metallic band.- Wim E. WARLAND,

-In testimony whereof I have hereunto set CHRISTIAN OLMSTEADT.

HUGH MULHOLLAND.

Copies of this patent may be obtained for ve cents each, addressing thef Conimissioner of Intenta,-

` Washington, D.'C." N

